Friday, January 18, 2008

DESIGN OF VEHICLE POSITION TRACKING SYSTEM USING SHORT MESSAGE SERVICES

Abstract — This paper describes the design of a system thatcan give information of vehicle position everytime there’s arequest for it. The information of vehicle position is gained from GPS and it is transmitted using Short Message Services. The system is designed using VHDL on Altera MAX+plus II software, and it is implemented on Altera UP1X demoboard based on FPGA chip, which is Altera FLEX 10K EPF10K70RC240-4.I. INTRODUCTIONA. BackgroundTechnology grows rapidly that causes every people to act fast. As one of human needs, information plays a greater role. People need to get fast and up -to- date information.The need to get such information is get ting more important. For example is the need of knowing the position of vehicle is important for its owner .In this paper we develop such system...

Thursday, January 17, 2008

Internet Monitoring & PingER at SLAC

IntroductionTo provide a better expectation of the network performance between sites that SLAC collaborates with, in May 1996 the PingER project (initiated in Janary 1995) monitored about 100 hosts worldwide from SLAC. Since 2000, the emphasis is more on measuring the Digital Divide. Nowadays (April 2007) there are over 35 Monitoring Sites, over 700 remote sites being monitored in over 120 countries (containing over 99% of the worlds Internet connected population) and over 3000 monitor-site remote-site pairs included. More details on the deployment of PingER can be found in PingER Deployment and there is a map of the sites. MechanismThe main...

Wednesday, January 16, 2008

OpenVPN over 7050

I spoke too soon in a recent thread, when i thought I had openvpn working properly. In fact it seems that it is working inside my LAN but not from outside. I cannot reach it from a static IP to the router.my internal lan is all on the 10.8.0.0/24 subnet. I'm trying to establish the VON in bridge mode with the following topology:router: 10.8.0.1vpn gateway: 10.8.0.2dhcp server: 10.8.0.5 (also serves DNS and WINS)the dhcp will lease addresses to vpn clients.all this works if i try to connect to the 10.8.0.2 gateway inside the network (or 10.8.0.1, in fact). it doesn't work outside.i have set an ipforwarding rule in the ar7.cfg file to point all incoming traffic on port 1194 to 10.8.0.1, which should do the trick, but seemingly not.my server conf, debug.cfg areserver.confCode:daemonproto tcp-serverport...

Tuesday, January 15, 2008

Modem Phone Tutorial

START OF TUTORIALmisal kalau udah install driver kabel data dku5 nya di COM7, ikuti langkah berikut :1. start -> control panel -> phone and modem option2. pilih tab modem -> add3 . ikuti langkah2nya, tandai "don't detect my modem; i will select it from a list -> klik Next4 . di Install new modem, pilih manufacture: Nokia, terus pilih handphone sesuai yang dimiliki.. misal kamu kan punya N6100 , pilih N6100 (Cable) *kalau ada driver coba klik "Have Disk" kemudian Browse kemudian pilih sesuai lokasi driver modem yang kamu miliki.5 . kalau udah keinstal.. pilih COM nya... COM7 mungkin tidak tersedia, pilih sembarang COM dulu. kalau ada notifikasi, pilih "Continue Anyway"6 . kalau udah ada Nokia 6100 (Cable) di modem list ikuti langkah berikut6.1. close semua windows6.2. start ->...

Monday, January 14, 2008

Enabling Client Certificates in IIS 6.0 (IIS 6.0)

You can require users attempting to access your Web site to log on with a client certificate. Requiring a client certificate is just one aspect of protecting your server against unauthorized access. Any user with a valid and trusted client certificate can establish a secure connection and access your resource. To protect your Web content from unauthorized access you must do one of the following:• Use Basic, Digest, or Integrated Windows authentication, in addition to requiring a client certificate.• Create a Windows account mapping for client certificates. For more information, see Mapping Client Certificates to User Accounts in IIS 6.0.ImportantYou must be a member of the Administrators group on the local computer to perform the following procedure or procedures, or you must have been delegated...

A Tutorial on Geometric Programming

S. Boyd, S.-J. Kim, L. Vandenberghe, and A. HassibiOptimization and Engineering, 8(1):67-127, 2007(software for generalized geometric programming)A geometric program (GP) is a type of mathematical optimization problem characterized by objective and constraint functions that have a special form. Recently developed solution methods can solve even large-scale GPs extremely efficiently and reliably; at the same time a number of practical problems, particularly in circuit design, have been found to be equivalent to (or well approximated by) GPs. Putting these two together, we get effective solutions for the practical problems. The basic approach in GP modeling is to attempt to express a practical problem, such as an engineering analysis or design problem, in GP format. In the best case, this formulation...

Sunday, January 13, 2008

Speed Up Your Site! 8 ASP.NET Performance Tips

Now that you've added the finishing touches to your web site and unleashed it onto the world, fame, fortune, and success will surely follow -- won't it?Unfortunately, your web application's success can lead to something less desirable -- performance and scaling problems. On a traditional desktop application, one thousand users translate to one thousand client computers chugging away, sharing the load of running your application. The application is effectively spread among all the users' machines. When it comes to a web application, though, those same thousand users are usually serviced by a single machine -- your web server.Success can come at a cost for web applications: a cost in bandwidth and server hardware. However, there are a few clever ways you can reduce -- and sometimes eliminate...